Sectional fly-wheel



(No Model.)

' R. BQOOLLIER.

, SEGTIONAL FLY WHEEL. A

No. 402,564. Patented May 7, 1889.

i ht memo 7 5 whom wig N. PETERS, PhulcrLillmgnpher. Wlhingion, n. c.

7 UNITED STATE ROBERT B. ooLLrER,

SECTIONAL OF COLUMBUS, OI -IIO.

FLY-IWH EEL.

SPECIFICATION forming part of Letters Patent No. 402,564, dated May 7,1889.

Application filed June 21, 1888.

To all whom it may concern;

Be it known that I, ROBERT B. COLLIER, of Columbus, Franklin county,State of Ohio, have invented a new and useful Improved SectionalFly-Wheel, of which the following is a true and exact description,reference being had to the accompanying drawings, which form a part ofthis specification.

My invention relates to the construction of fly-wheels, and has for itsobject the construction of fly-wheels in two or more sections by meansof devices which will, while enabling the ordinary advantages of sectional construction to be obtained-to wit, stronger and bettercastings and greater ease in transportation'-in addition possess greaterstrength and rigidity, be moreperfecily true than ordinary sectionalfly-wheels, and enable liners and shimming to be dispensed with.

Reference being now had to the drawings which illustrate myinvention,Figure 1 is a side elevation of my improved fly-wheel made in twosections, and Fig.2 a central cross-section thereof.

AA indicate the two sections of the wheel proper; B B, the sections ofthe central web, from which the spokes of the Wheel radiate, and whichof course are sectioned the same way as the rest of the wheel. 0 is thehub proper of the wheel, made up, as shown, of a broad annular flange,C, and a sleeve, 0

D is an annular plate of dimensions corresponding to the flange O of hubO.

E E, &c.,are bolts provided with heads and nuts in the usual way.

F F are lugs perforated to receive a bolt, J, said lugs being formed, asshown, on the edges of adjoining sections of the wheel-rim.

Gindicates a wrought-iron ring shrunk into a recess formed in thecasting between adjoining sections of the rim, and G G chipping-strips.Both of these devices, being usual in sectional fly-wheels,'need not beparticularly described.

H is the crank-pin.

My fly-wheelis constructed and put together as follows: .Twosections,A'A are cast in the usual manner, the abutting ends of thecastings being carefully planed and faced off both at the rim and at thecentral web, B B, so as to fit smoothly and truly against each other.The sides of the central sectional web,

Serial No- 277,769- (No model.)

B B, are also to be faced off, so as to be per fectly true, and thecentral hole the-rein carefully bored out to fit upon the sleeve (3 ofthe hub C. The annular flange G of the hub C a is faced off, so as tofit truly against one side of the sectional webB B, and the annularplate D is similarly faced to fit against the other side of thesectional web B B. A large number of bolt-holes are drilled through theflange O, sectional web B B, and the annular plate D, and carefullyreamed to give a true and even bearing through all the three pieces forthe bolts E, which should be turned to fit neatly in the hole. Aperforation should also be formed to receive the crank-pin H, as shownin the drawings, the perforation passing through the flange C, the plateD, and one section of the sectional web B B, and being carefully reamedto fit the turn-pin H. The usualarrangement, such as indicated at F F,f, G, and G, may be used to secure the abutting edges of the rimtogether.

A wheel made in the above-described manner will be perfectly true andwhen put together as rigid as though made of a single casting. Thesectional castings are stronger and more free from injurious strainsthan a single casting would be, and the wheel of course much more easilyhandled, as it can be loaded on the cars in sections and accurately andsecurely put together at the point where it is to be erected. It will befound desirable to shrink the hub 0 upon the shaft before shipment. Thiscan be easily done without interfering with the convenience oftransportation, as would be the case wherethe whole wheel was secured.to the shaft before shipment.

I have described and shown my improved fly-wheel as made in twosections. Three or even more sections could obviously be constructed inthe same manner, and my invention would not be departed from by such achange. The number of sections into which the wheel would be divided issimply a matter of convenience in view of its size.

cable not only to fly-wheels, but also to the construction of unusuallylarge gear-wheels,

asto which the same advantages would be gained by following my plan ofconstruction.

Having now described my invention, what I It is obvious that myinvention is appli- ICO claim as new, and desire to secure by LettersPatent,is

1. A sectional fly-Wheel consisting of a plurality of cast sections, AA, each comprising a portion of the rim and a corresponding portion of asectional central Web, B B, the abutting edges of said sections beingcarefully faced off to fit against each other, and the sides of thesectional central Web being carefully and truly faced, a slotted hub, 0,made of a single flanging or casting, and having an annular flange, C,faced ofi to fit truly on one side of the sectional central web, B B,and having a sleeve, C turned to fit tlie central hole in Web B B, andan annular plate, D, made of a single piece of metal, turned and facedto fit on the sleeve 0 and against the sectional central web, B B and anum= ber of bolts, E E, arranged to fit in carefullyreamed perforationssymmetrically arranged about the hub G and passing through: the centralweb,B B, andfiange O, the sectional the plate D. 1

2. Asectional fly-wheel consisting of a plurality of cast sections, A A,having a sectional central web, B B, the abutting edges of said sectionsbeing carefully faced off to fit against each other, and the sides ofthe sectional central web being carefully and truly faced, a hub, 0,having an annular flange, O, faced 01f to fit truly on one side of thesectional central web, B B, and having a sleeve, 0 turned to fit thecentral hole in B ROBERT B. OLLIER,

Witnesses:

R. W, WEAVER, STEPHEN MONYPENY.

